1 files changed, 69 insertions, 0 deletions
diff --git a/catapult/telemetry/telemetry/internal/actions/load_media_unittest.py b/catapult/telemetry/telemetry/internal/actions/load_media_unittest.py
new file mode 100644
index 00000000..cdb7719e
--- /dev/null
+++ b/catapult/telemetry/telemetry/internal/actions/load_media_unittest.py
@@ -0,0 +1,69 @@
+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+from telemetry import decorators
+from telemetry.internal.actions.load_media import LoadMediaAction
+from telemetry.testing import tab_test_case
+from telemetry.util import js_template
+
+import py_utils
+
+
+class LoadMediaActionTest(tab_test_case.TabTestCase):
+
+  def setUp(self):
+    tab_test_case.TabTestCase.setUp(self)
+    self.Navigate('video_test.html')
+
+  def eventFired(self, selector, event):
+    # TODO(catapult:#3028): Render in JavaScript method when supported by API.
+    code = js_template.Render(
+        'window.__hasEventCompleted({{ selector }}, {{ event }});',
+        selector=selector, event=event)
+    return self._tab.EvaluateJavaScript(code)
+
+  @decorators.Disabled('linux',     # crbug.com/418577
+                       'chromeos')  # crbug.com/632802
+  def testAwaitedEventIsConfigurable(self):
+    """It's possible to wait for different events."""
+    action = LoadMediaAction(selector='#video_1', timeout_in_seconds=0.1,
+                             event_to_await='loadedmetadata')
+    action.WillRunAction(self._tab)
+    action.RunAction(self._tab)
+    self.assertTrue(self.eventFired('#video_1', 'loadedmetadata'))
+
+  @decorators.Disabled('linux')  # crbug.com/418577
+  def testLoadWithNoSelector(self):
+    """With no selector the first media element is loaded."""
+    action = LoadMediaAction(timeout_in_seconds=5)
+    action.WillRunAction(self._tab)
+    action.RunAction(self._tab)
+    self.assertTrue(self.eventFired('#video_1', 'canplaythrough'))
+    self.assertFalse(self.eventFired('#audio_1', 'canplaythrough'))
+
+  @decorators.Disabled('linux')  # crbug.com/418577
+  def testLoadWithSelector(self):
+    """Only the element matching the selector is loaded."""
+    action = LoadMediaAction(selector='#audio_1', timeout_in_seconds=5)
+    action.WillRunAction(self._tab)
+    action.RunAction(self._tab)
+    self.assertFalse(self.eventFired('#video_1', 'canplaythrough'))
+    self.assertTrue(self.eventFired('#audio_1', 'canplaythrough'))
+
+  @decorators.Disabled('linux')  # crbug.com/418577
+  def testLoadWithAllSelector(self):
+    """Both elements are loaded with selector='all'."""
+    action = LoadMediaAction(selector='all', timeout_in_seconds=5)
+    action.WillRunAction(self._tab)
+    action.RunAction(self._tab)
+    self.assertTrue(self.eventFired('#video_1', 'canplaythrough'))
+    self.assertTrue(self.eventFired('#audio_1', 'canplaythrough'))
+
+  @decorators.Disabled('linux')  # crbug.com/418577
+  def testLoadRaisesAnExceptionOnTimeout(self):
+    """The load action times out if the event does not fire."""
+    action = LoadMediaAction(selector='#video_1', timeout_in_seconds=0.1,
+                             event_to_await='a_nonexistent_event')
+    action.WillRunAction(self._tab)
+    self.assertRaises(py_utils.TimeoutException, action.RunAction, self._tab)